using System;
using System.Collections.Generic;
using System.Text;
namespace Chain
{
    class Program
    {
        public static IntNode Klita() //כאן אני אמור להמשיך את שעורי הבית
        {
            
        }
        public static void PrintChain(IntNode pos) //מדפיס את החוליות
        {
            while (pos != null)
            {
                Console.WriteLine(pos);
                pos = pos.GetNext();
            }
        
        }
        static void Main(string args)
        {
            IntNode n = new IntNode(1);
            IntNode n1 = new IntNode(2,n);
            IntNode n2 = new IntNode(3, n1);
        }
    }
}

using System;
using System.Collections.Generic;
using System.Text;
namespace Chain
{
    class IntNode
    {
        private int info;
        private IntNode next;
        public IntNode(int info)
        {
            this.info = info;
            this.next = null;
        }
        public IntNode(int info, IntNode next)
        {
            this.info = info;
            this.next = next;
        }
        public IntNode GetNext()
        {
            return this.next;
        }
        public int GetInfo()
        {
            return this.info;
        }
        public void SetNext(IntNode next)
        {
            this.next = next; 
        }
        public void SetInfo(int info)
        {
            this.info = info;
        }
        public override string ToString()
        {
            return " "+this.info;
        }

    }
}

public static IntNode Klita() //כאן אני אמור להמשיך את שעורי הבית
        {
            IntNode temp;
            IntNode n = new IntNode(int.Parse(Console.ReadLine()));
            
            while (n.GetInfo() > 0)
            {
                temp = n;
                n = new IntNode(int.Parse(Console.ReadLine()),temp);
            
            }
            return n;
        }